专利号:WO-2021233976-A1 优先权日:2020-05-19 标 题 :Process for the synthesis of isocyanate-free omega-hydroxy-urethanes, alpha-omega-diurethanes and oligo (poly)urethanes 发明人:NOCITO FRANCESCO; ARESTA MICHELE; DIBENEDETTO ANGELA 权利人:CONSORZIO INTERUNIVERSITARIO NAZ PER LA REATTIVITA CHIMICA E LA CATALISI; CATALISI INNOVATIVA PER IL RICICLO DEL CARBONIO E BIOPOLIMERI S R L 摘要:The synthesis of omega-hydroxyalkyl-urethanes, and of alfa-omega-diurethanes is reported which includes the reaction of diols with urea in presence of catalysts based on Ce at temperatures between 125 and 170°C over 4-8 h reaction time. A process for the production of oligomers of omega-hydroxyalkyl-urethanes is also reported based on the reaction of urea with diols in presence of Ce or Zr catalysts or Ce mixed oxides at 125-170°C over 4-20 h.
专利号:US-6630602-B1 优先权日:1998-04-16 标题 :Propylisopropyl acetic acid and propylisopropyl acetamide stereoisomers, a method for their synthesis and pharmaceutical compositions containing them 发明人:BIALER MEIR; SPIGELSTEIN OFER; YAGEN BORIS 权利人:YISSUM RES DEV CO 摘要:The present invention relates to racemic propylisopropyl acetic acid and propylisopropyl acetamide and their isomers in their racemic and stereospecific forms, for use in treatment of neurological and psychotic disorders, and affective disorders and to treat pain, headaches and migraines. The isomers are of the compound formula I:wherein R1 is a methyl or ethyl group; R2 is H, methyl or an ethyl group; R3 is ethyl or a propyl group; and R4 is a hydroxyl or amide group; and the total number of carbon atoms in said compound is 8, provided that when R1 is a methyl group and R4 is an amide group, R2 and R3 are not ethyl, further provided that when R1 is an ethyl and R4 a hydroxyl group, only stereoisomers of the compound are referred to. The present invention further relates to a method for the stereoselective synthesis of the 2S and 2R stereoisomer of PID and PIA. The present invention also relates to pharmaceutical compositions containing as an active ingredient a racemic mixture or stereoisomers of the compounds of the general formula (I), which are useful for the treatment of neurological and psychotic disorders, and affective disorders and to treat pain, headaches and migraines.
专利号:US-6969732-B2 优先权日:1999-04-12 标 题 :Propylisopropyl acetic acid and propylisopropyl acetamide stereoisomers, a method for their synthesis and pharmaceutical compositions containing them 发明人:BIALER MEIR; SPIGELSTEIN OFER; YAGEN BORIS 权利人:YISSUM RES DEV CO 摘要:The present invention relates to racemic propylisopropyl acetic acid and propylisopropyl acetamide and their isomers in their racemic and stereospecific forms, for use in treatment of neurological and psychotic disorders, and affective disorders and to treat pain, headaches and migraines. The isomers are of the compound formula I n n R 1 is a methyl or ethyl group; R 2 is H, methyl or an ethyl group; R 3 is ethyl or a propyl group; and R 4 is a hydroxyl or amide group,n nand the total number of carbon atoms in said compound is 8, provided that when R1 is a methyl group and R4 is an amide group, R2 and R3 are not ethyl, further provided that when R1 is an ethyl and R4 a hydroxyl group, only stereoisomers of the compound are referred to.n nn The present invention further relates to a method for the stereoselective synthesis of the 2R stereoisomer of PID and PIA. The present invention also relates to pharmaceutical compositions containing as an active ingredient a racemic mixture or stereoisomers of the compounds of the general formula (I), which are useful for the treatment of neurological and psychotic disorders, and affective disorders and to treat pain, headaches and migraines.
专利号:US-2006241298-A1 优先权日:2005-04-21 标 题:Methods for synthesis of dicarbamate compounds and intermediates in the formation thereof 发明人:MORTKO HENRY; HE WEIXUAN; ANDERSEN MARC W; DOTSE ANTHONY K; LI JIE 权利人:MORTKO HENRY; HE WEIXUAN; ANDERSEN MARC W; DOTSE ANTHONY K; LI JIE 摘要:Disclosed is a method of making 2-substituted-2-halo-1,3-propanediols via reduction of corresponding malonate compounds. Also disclosed is a method of making 2-substituted-2-halo-1,3-dicarbamate compounds (such as halo derivatives of felbamate, including fluorofelbamate) via reduction of malonate compounds, followed by carbamoylation. Reduction of the malonate compounds is carried out using an electrophilic hydride reagent.
专利号:US-2008214827-A1 优先权日:2004-02-03 标 题:Synthesis of Cyanoimino-Benzoimidazoles 发明人:GOEHRING R RICHARD; WHITEHEAD JOHN; SHAO BIN 权利人:EURO CELTIQUE SA 摘要:Disclosed in certain embodiments is a process for synthesizing a compound of formula (V) and salts thereof.
专利号:US-2011040105-A1 优先权日:2008-04-16 标题 :Processes useful for the synthesis of (r)-1--2-methyl-pyrrolidine 发明人:HUBER CHRISTIAN H; KHULMAN YOUNG MI; TANDEL SAGUN K; JOHANNSEN STEPHEN R; WANG TINGMIN; ANGELL PAUL 权利人:ARENA PHARM INC 摘要:Processes useful for making a pharmaceutically useful compound according to Formula (I), forms of such a compound, and intermediates useful in such processes are described.
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合成参考文献
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